ALE 4070 4070 DECT Base Station User Manual User Guide

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Date Submitted	2007-10-29 00:00:00
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Document Title	User Guide

 
 
 
Subset of Installation
Manual
Release 6.1 - October 2007
Legal notice:
Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of
Alcatel-Lucent. All other trademarks are the property of their respective
owners.
The information presented is subject to change without notice.
Alcatel-Lucent assumes no responsibility for inaccuracies contained herein.
Copyright Š 2007 Alcatel-Lucent. All rights reserved.
The CE mark indicates that this product conforms to the following Council
Directives:
- 89/336/CEE (concerning electro-magnetic compatibility)
- 73/23/CEE (concerning electrical safety)
- 1999/5/CE (R&TTE)

  

  
 
Chapter 1
Installation and Cabling

Intelligent Base Stations ...................................................................... 1.1


Detailed description .................................................................................... 1.1
Safety rules .................................................................................................. 1.8
  
       
  
 
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1.1
Intelligent Base Stations
1.1.1
Detailed description
 
This notice describes the rules to follow for an installation comprising three or four DECT
bases.
For a larger installation, a preliminary study must be carried out using coverage tools. The
bases are then installed according to the results of this study.
1.1.1.1
CONNECTION
The Alcatel-Lucent 4070 IO is designed for internal installation in the building, while the
Alcatel-Lucent 4070 EO is designed for external installation.
The 4070 EO IBS comes in a plastic box and is protected against temperature variation.
The 2 antennae are outside the box so that they both have the same signal reception.
Intelligent Base Stations (IBS) are fitted with a red LED that gives information about the state
of the Base Station:
Fixed LED:
1. Software downloading
2. Initialization phase, waiting for synchronization
3. Software problem, IBS stopped.
Fast blink: There is a problem with the line.
Short ON, long OFF: Running on 1 UA link.
500ms OFF, 500ms ON: Running on 2 UA link.
The IBSs can run and be powered remotely by the UA access (this is the most common
configuration). But they can also be powered by a power device. This is used when there are a
lot of IBSs and the system power cannot support all the connected IBSs.
A base station may be connected to 1 or 2 UA links (UAI boards) and allows 3 or 6
simultaneous connections with DECT/GAP terminals.
The need for three or six communication channels depends on the number of cordless stations
and on the DECT traffic to be managed.
In the event of a two-cable connection:
use two interfaces neighboring a UAI board
use the even-numbered interface for the master link and the other for the slave link.
Both cables should have the same length. The first interface of the system’s UAI16 board
should not be used since the operator station uses those points.
  
       
  
 
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1.1.1.2
  
  ! "
NUMBER OF USEFUL BASE STATIONS
Any radio signal is subject to various propagation phenomena: attenuation, reflection and
diffraction. These phenomena are related to the environment of the Alcatel-Lucent 4070
IO/EO, and affect the radio performance of the system.
The effects can improve or deteriorate wave propagation.
Take as an example a building with a metallic structure. A radio wave will tend to be subject to
many reflections which will consequently degrade system performance.
Moreover, the range of an Alcatel-Lucent 4070 IO/EO is very dependent on the amount of
attenuation subjected to the radio wave across various zones.
The following table gives the values of global coverage zone (cell) for an Alcatel-Lucent 4070
IO/EO under normal environmental and topological conditions:
Coverage area
Area:
1.1.1.3
Exterior
~ 50 m
~ 400 m
~ 7,000 m
~ 50 000 m 2
NUMBER OF USERS PER BASE STATION
Type of Base Station connection.
1.1.1.4
Interior
Number of DECT users
3 channels
6 channels
12
LOCATING DECT BASE STATIONS
As a result of the environment and the infrastructure, certain recommendations must be taken
into account for locating Alcatel-Lucent 4070 IO/EO:
1-2
  
       
  
 
  
Recommendations for location
INTERIOR
COVERAGE
Possible solutions
As far as possible from walls
Suspend Alcatel-Lucent 4070 IO/EO in a
clear zone
Do not fix directly to a metallic structure
Move Alcatel-Lucent 4070 IO/EO into
another zone
Do not place in false ceilings or in telecom
rooms
Place Alcatel-Lucent 4070 IO/EO in useful
zones (corridors)
As far as possible from industrial machines
or electrical cabinets
Place 4070 IO/EO in useful zones
Place the base stations in an open space
(as far as possible from buildings)
Attached to pylons for example
Place the base stations higher than low
obstacles (trees, cars etc.)
At the top of buildings on pylons for
example
EXTERNAL
COVERAGE
1.1.1.5
  ! "
INTERACTIONS
Interactions with other features
IBS DECT and IBS PWT (Personal Wireless Telecommunications) cannot run together on the
same system. The first IBS plugged determines the system type (DECT or PWT).
To switch from one system to another, unplug all IBSs, make a warm restart and plug in the
IBSs.
Interactions with other applications
IBSs are fully compatible with other wireless technologies such as VOWLAN.
Interactions with other software releases
OmniPCX Office release 5.1 requires 4 kinds of DECT initialization: Europe, Latin America,
United-States and China. See also: § IBS CONFIGURATION .
1.1.1.6
LIMITS
Number of IBSs: 20 IBSs per cabinet is recommended, however, the number of IBSs is only
restricted by the available power.
DECT link limit: 3 links on an IBS with one UA access, 6 links on an IBS with 2 UA accesses.
DECT handset limit: up to 120 handsets on a system.
1.1.1.7
PERFORMANCE AND QUALITY
IBSs are downloaded during the system start phase or when hot plugged. A system with many
IBSs plugged might take longer to complete the start phase.
Downloading 1 IBS takes about 30 seconds. It takes more time when several IBSs are
plugged on the same UA resource.
The end of restart is only possible after all the devices have been taken into account.
If an IBS downloading fails, the IBS restarts with the previously installed software.
1.1.1.8
IBS CONFIGURATION
There is no hardware configuration for IBS other than selecting between an external power
supply for each IBS and remote power by system.
  
       
  
 
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To configure the IBS software:
ARI Number
The ARI number identifies each OmniPCX Office. Each OmniPCX Office has an identical
default ARI number.
When you install a new OmniPCX Office, you have to change the default ARI number. You
can only keep the first digit, which is "1" and which means "ARI type B".
1 In OMC, go to System Miscellaneous -->DECT/PWT ARI/GAP
2 Enter your own number (octal digit) to register your DECT handset.
___change-end___
___change-begin___
Figure 1.2: ARI Number
Note 1:
The ARI Number is the only non plug and play device on the IBS.
The default configuration fits with the major systems. Modifications should answer to specific needs.
Line length
The Line length is the cable length used to plug the IBS to the system (distance between the
IBS and OmniPCX Office). It enables the system to add a delay in signal and to avoid a shift in
clock signal that creates a reset of the IBS.
1 In OMC, go to Users/Base stations List.
2 Select the IBS Master and click Details
There are 3 possibilities of configuration:
1-4
Short line (0-400 meters)
  
       
  
 
  
Medium line (400-800 meters)
Long line (800-1200 meters)
  ! "
Restart the IBS after you have modified the Line length parameter.
Antenna diversity
Antenna diversity is the ability of the IBS to move the transmission and reception from one
antenna to the other so that the signal is always of the highest quality.
Restart the IBS after you have modified the Antenna diversity parameter.
Silent-Noisy IBS
Enable the Silent-Noisy IBS parameter to set up the echo canceller device.
The IBS is fitted with a software device that analyses audio signals and eliminates echo and
noises. This device is activated by default.
When an IBS is deployed in a noisy environment, a lot of signals, including Speech ones, are
eliminated while in Conversation state. This leads to bad Speech quality.
You have the option to disable the echo canceller. In that way, the speech and the noise
signals are not filtered. It is then to the user to identify the speech.
Frequency plan
___change-begin___
In OMC, go to System Miscellaneous# DECT/PWT Frequencies to select signals. In OMC,
you can configure both the DECT and PWT frequency plans, regardless of what types of
handsets are plugged on the system.
  
       
  
 
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___change-end___
Figure 1.3: DECT/PWT Frequencies
Note 2:
Due to hardware, there is a limit in the number of channels that you can configure.
You can configure the following numbers of channels:
1.1.1.9
DECT EUROPE, LATAM, CHINA: 1, 2, 4, 5, 8, 10 channels
DECT US: 1, 2, 4, 5 channels
PWT: 1, 2, 4, 5, 8 channels
Initialization
Once the IBS finishes the downloading, the system starts the initialization.
The system synchronizes the signals of the IBSs so that handovers are possible. The system
selects the T0, T2, or CPU main board clock as the source.
Then the system sends the following data:
Fixed part capabilities (Full slot, frequency control, page repetition, setup on dummy, basic
A field setup): value sent = 0x007910
Line length: Short line
Frequency plan (2 bytes)
Some countries have shifted DECT frequencies. In order to be compatible with all frequency
bands in the different countries, 4 types of initialization of frequency plans are available:
Europe, Latin America, The United-States and China.
table 1.4: RF Band Europe
TX Freq
Channel
RX Freq
1897.344
1898.206
1895.616
1896.480
1893.888
1894.752
1892.160
1893.024
1890.432
1891.296
1888.704
1889.566
1886.978
1887.840
1885.248
1886.112
1883.520
1884.384
1881.792
1882.656
Note 1:
By default, all frequencies used
Value sent to IBS: 0x3FF
0000 0011 1111 1111
table 1.5: RF Band China
1-6
  
       
  
 
  
Channel
TX Freq
RX Freq
1918.060
1918.944
1916.352
1917.216
1914.624
1915.446
1912.898
1913.760
1911.188
1912.032
1919.440
1910.304
1907.712
1908.576
1905.964
1906.848
1904.256
1905.120
1902.528
1903.392
Channel
table 1.6: RF Band Latam
TX Freq
RX Freq
1928.448
1929.312
1926.720
1927.584
1924.992
1924.992
1923.264
1923.264
1921.536
1921.536
1919.808
1919.808
1918.060
1918.060
1916.352
1916.352
1914.624
1914.624
1912.896
1912.896
Channel
table 1.7: RF Band US
TX Freq
RX Freq
1928.448
1929.312
1926.720
1927.584
1924.992
1925.856
1923.264
1924.128
  ! "
Note 2:
By default, all frequencies used
Value sent to IBS: 0x3FF
0000 0011 1111 1111
Note 3:
By default, all frequencies used
Value sent to IBS: 0x3FF
0000 0011 1111 1111
  
       
  
 
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1921.536
1922.400
Note 4:
By default, only 5 frequencies used
Value sent to IBS: 0x03E0
0000 0011 1110 0000
table 1.8: RF Band PWT
Center Freq
Channel
1929.375
1928.125
1926.875
1925.625
1924.375
1923.125
1921.875
1920.625
Note 5:
By default, 8 frequencies used
Value sent to IBS: 0x03FC
0000 0011 1111 1100
1.1.2
Safety rules
1.1.2.1
ENVIRONMENTAL PROTECTION
For an exterior installation, it is necessary to take precautions against lightning affecting the
location of the Alcatel-Lucent 4070 IO/EO.
1.1.2.1.1 Conditions for using lightning protection:
Protection of Alcatel-Lucent 4070 IO/EO against lightning should be used when they:
- are less than 1.5 m from a wall more than 2 m below the antenna.
- use an external airborne connection between the base station and the system.
1.1.2.2
RECOMMENDATIONS FOR EXPOSURE OF THE PUBLIC TO THE
ELECTROMAGNETIC FIELD
1.1.2.2.1 MAGNETIC ABSORPTION RATE
Exposure of the public to the electromagnetic field from DECT sets and base stations is
measured using the Specific Absorption Rate (SAR) measuring unit. 2W/kg is the SAR limit
value indicated in international recommendations and also in the European recommendation
(1999/519/EC).
The DECT authorised SAR limit value is 2 Watts/kilogram on 10g of body tissue (local SAR).
1-8
  
       
  
 
  
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International recommendations include a safety margin for the public and take account of
possible measuring variations.
SAR values
Set: as the average power emitted from a set is lower than 20mW, the set is considered to
comply without having to undergo any tests (see: EN 50371). The SAR value for DECT
sets (e.g.: Mobile Reflexes) is not significant.
Base station: the local SAR (head and chest) on 10g of body tissue for DECT base
stations (e.g.: 4070) is lower than 0.5 W/kg (this is with an integrated omni-directional
antenna).
1.1.2.2.2 ANTENNAE CHARACTERISTICS
Integrated antennae
The following is a list of characteristics for integrated antennae:
Bandwidth: 1.88 to 1.93 Ghz
Impedance: 50 Ohms
TOS: 1.5:1
Gain: 3 dBi (maximum)
Polarization: vertical (axis of the antenna)
Width of the beam at 3 dB (vertical): 90Âş
Radiation diagram: omni-directional in the horizontal plane.
External antennae
According to the ETSI EN 301 406 standard, DECT antenna gain is limited to 12 dB +/-3dB. In
the case of external directional antennae, if a minimum safety distance of 50 cm is respected,
the SAR value is the same as the value obtained in the case of an integrated omni-directional
antenna (and therefore, lower than: 0.5 W/kg).
1.1.2.2.3 CONFORMANCE PERIMETER FOR EXPOSURE OF THE PUBLIC
1.1.2.3
Integrated omni-directional antennae: no limit for the conformance perimeter
External antenna (directional): the installation must allow for a safety perimeter respecting
a minimum distance of 50 cm.
RECOMMENDATIONS FOR INSTALLATION
1.1.2.3.1 Standard Topology.
The various building infrastructures are grouped into three types of geometric shape.
  
       
  
 
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Coverage areas SQUARE:
  ! "
Coverage areas RECTANGULAR Coverage areas ROUND
The distances quoted below give an idea of typical range of a base station. It is clear that a
rectangular zone requires more base stations to provide full coverage.
1.1.2.3.2 Layout technique
For structures with a number of floors, different solutions can be envisaged as a function of:
the coverage obtained at each level.
the position of the Alcatel-Lucent 4070 IO/EO (higher or lower level).
Installation examples
Square zone
Rectangular zone
Example 1: square building
Example 2: rectangular building
st
1-10
1 floor
1st floor
2ndfloor
2ndfloor
  
       
  
 
  
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It is possible to alter the number of base stations used
from one floor to another for this type of building.
The technique used is overlapping the location of base stations from one level to another. This
technique can be used for alternate floors if the coverage of a level can be achieved from an
adjacent level.
1.1.2.3.3 Coverage depending on the infrastructure
The solution proposed alternates two stations per floor with overlapping locations from one
floor to another. The zones shown by unbroken circles correspond to the zones covered by
each station (B1, B2, B3, B4).
The zones in bold correspond to the coverage at a given level from a station on the floor above
or below.
  
       
  
 
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